Engine



FIG. 1 is a front perspective view of an engine showing our new design;

FIG. 2 is a top view of the claimed design of FIG. 1;

FIG. 3 is a left side view of the claimed design of FIG. 1;

FIG. 4 is a right side view of the claimed design of FIG. 1;

FIG. 5 is a front view of the claimed design of FIG. 1;

FIG. 6 is a rear view of the claimed design of FIG. 1; and,

FIG. 7 is a bottom view of the claimed design of FIG. 1.

The dash-dot-dash lines throughout the drawings define the bounds of the claimed design. 

We claim the ornamental design for an engine, as shown and described. 